>I'm getting strange error (500).
>
>My HTML is this
>
>

> sm-code-unique-validator
>                       table-name="items"
>                       column-to-test="barcode"
>                       primary-key="currentItem.itemId"
>                       ng-model-options="{ debounce: { default : 500, blur: 0 }}"

>
>and the code is
>
>

>ngModel.$asyncValidators.smCodeUnique = function (value) {
>                    if (value) {
>                        var codeObject = {
>                            id: $scope.primaryKey, tableName: $scope.tableName,
>                            columnToTest: $scope.columnToTest, code: value
>                        };
>
>                        $log.debug(codeObject);
>                        return services.Item.checkCodeUniqueness(codeObject);
>                    }
>                    else
>                    {
>                        return true;
>                    }
>                };

>
>I am still getting 500 error and also why the code is always firing? I don't need to fire validators if I didn't touch the control.

If your getting a 500 then obviously something is failing on the server - you need to debug that.
Don't know why your directive is firing when there's no change on the control. Maybe you can add something to the directive to determine where the call needs to be made ?